Question 1122948
So this is literal equations, i didnt know what catagory to put this question under so I put it in here.
The problem is y=3/5u +5 Solve for u. I have tried to subtract the 5 first, getting y-5 = 3/5u, then multiplying 5u on both sides, resulting in 5uy-5=3. I got stuck here not knowing what to do, or if this was the right way to do this. I would greatly appreciate it if someone could help me.
<pre>The correct answer depends on where the "u" is. 
Is it {{{matrix(1,7, y, "=", (3/5)u + 5, or, y, "=", 3/(5u) + 5)}}}?

Since you said it's the latter, we'll pick up where you left off.
You have: 5uy - 5 = 3 <b><===== This is wrong!</b> 
Let's go back some more to: {{{matrix(1,3, y - 5, "=", 3/(5u))}}}
Multiplying the above by LCD, 5u will give you: 5uy - 25u = 3, and NOT 5uy - 5 = 3. Understand?
5uy - 25u = 3
{{{highlight_green(matrix(1,11, u(5y - 25), "=", 3, "________", u, "=", 3/(5y - 25), or, u, "=", 3/(5(y - 5))))}}}